Adjustable modular spacer device for the articulation of the knee

一种间隔器、模块化的技术，应用在膝关节、肘关节、关节植入物等方向，能够解决难关节移动性、医生难度装置污染、不能确保病人生活质量等问题

Active Publication Date: 2016-06-01
COSSINGTON LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, one disadvantage of this type of spacer includes the fact that making the device during the surgical procedure increases the length of the procedure, the difficulty for the surgeon, and the risk of contamination of the device during fabrication, which requires good manual skill and experience
[0011] However, the size and shape of such devices are pre-established, so there is no possibility of perfect adaptation of them at the implantation site, in particular, in cases where replacement of prostheses of different sizes and types is required, or This is especially true when there is a defect or abnormality in the implant site itself
[0012] Therefore, since it is not possible to adapt such spacers to the anthropomorphic dimensions of the patient's knee, it is more difficult to ensure good mobility of the joint and, therefore, cannot Ensuring a good quality of life for patients

Method used

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  • Adjustable modular spacer device for the articulation of the knee
  • Adjustable modular spacer device for the articulation of the knee
  • Adjustable modular spacer device for the articulation of the knee

Examples

Experimental program
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Embodiment Construction

[0036] According to the terms below, the human body can be divided into several regions according to the plane that ideally passes through the body.

[0037] The "sagittal plane" is a bilateral symmetrical plane from front to back, which divides the human body into two parts: the right part and the left part. These include: the mid-sagittal plane, which divides the body into two basically symmetrical parts; and planes parallel to the mid-sagittal plane, known as the lateral sagittal planes. Thus, a position or orientation relative to the body can be defined as "medial" or "medial" if it lies within the mid-sagittal plane, and if the position or orientation is closer to the lateral sagittal plane, then is defined as "outer".

[0038] Then, there is a "coronal" plane, which extends perpendicular to the sagittal plane.

[0039] Finally, a "transverse" plane is a plane that extends perpendicular to both the sagittal and coronal planes.

[0040] Similarly, an "anatomical axis" c...

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Abstract

Adjustable modular spacer device (1) for the articulation of the knee comprising a tibial component (3), suitable for being fixedly connected to one end of the tibial bone near to the articulation of the knee, a femoral component (2), suitable for being fixedly connected to one end of the femoral bone near to the articulation of the knee and suitable for coming into contact and for being articulated with the tibial component (3), in which the femoral component comprises at least one condylar articular portion (7, 8) and an intercondylar central body (6), in which the intercondylar central body (6) and the at least one condylar articular portion (7, 8) are separate and discrete components of the femoral component (2).

Description

technical field [0001] The present invention relates to adjustable modular spacer devices for temporary replacement of joint head prostheses. Such prostheses may have to be removed for different reasons, for example after an infection. [0002] The adjustable modular spacer device allows the actual anatomy of the patient to be determined in order to maintain the necessary joint space for the implantation of a new prosthesis and for all the time required to treat the joint and to remove it The prosthesis allows the patient to maintain good motion of the joint itself and the possibility to move and walk all the time until the next prosthesis is implanted. Background technique [0003] In the field of joint prosthesis implantation, it is known that such devices may have to be removed for many different reasons, notably due to local infection of the joint after implantation of the prosthesis itself. [0004] In such cases, after removal of the first prosthesis, it is necessary...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/38A61F2/30
CPCA61F2/3859A61F2/38A61F2/389A61F2002/30331A61F2002/30426A61F2002/30449A61F2002/30604A61F2002/30616A61F2002/30672A61F2002/30677A61F2002/3895A61F2310/00353A61F2240/001A61F2/30724A61F2/3836
Inventor 爱娃·卡布丽缇
Owner COSSINGTON LTD
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